You can use apm. It will only save a few watts, but it may reduce the cooling costs by reducing the heat generated by the CPU. If you have _many_ machines you can easily reduce the temperature of the server room by a few degrees C.
Advanced Power Management control https://calomel.org/apm_control.html -- Calomel @ https://calomel.org Open Source Research and Reference On Fri, Feb 05, 2010 at 11:37:16AM -0500, Jean-Francois wrote: >Le vendredi 05 fivrier 2010 11:17:51, vous avez icrit : >> On 04/02/2010 23:02, Jean-Francois wrote: >> > All, >> > >> > I am looking forward to reduce the TDP for a server planned to be built. >> > As low as possible shall be best, is AMD cool'n quiet operating with >> > latest OpenBSD ? >> > >> > Regards >> >> Depending on what you where looking at, you can reduce the voltages (if >> your BIOS has this much control) and this will lower power/heat. I've >> done this on PC's with bad HSF in hot temperatures. Though, like over >> clocking, it's an art that requires testing, trying and patience to find >> the lowest/highest while still being stable >> > >Hello, > >I think of doing this too. >What I would like to understand is if I will be able to use the frequency >change 1000 / 2000 MHz dynamic load based. > >Regards